Single Axis

Single-axis slewing drives rotate around one axis. These products are the standard in slewing drives, the easiest to install, and the most commonly used. The VE offers vertical mounting and a fully-enclosed drive in one high-powered unit.

Single Axis

Single-axis slewing drives rotate around one axis. These products are the standard in slewing drives, the easiest to install, and the most commonly used. The VE offers vertical mounting and a fully-enclosed drive in one high-powered unit.

Single Axis

Single-axis slewing drives rotate around one axis. These products are the standard in slewing drives, the easiest to install, and the most commonly used. The SE drives offer load-holding and rotational torque from one enclosed gearbox.

Single Axis

Single-axis slewing drives rotate around one axis. These products are the standard in slewing drives, the easiest to install, and the most commonly used. The VE offers vertical mounting and a fully-enclosed drive in one high-powered unit.

Single Axis

Single-axis slewing drives rotate around one axis. These products are the standard in slewing drives, the easiest to install, and the most commonly used. The KE drive offers an IP55 rating with no maintenance required after installation.

Single Axis

Single-axis slewing drives rotate around one axis. These products are the standard in slewing drives, the easiest to install, and the most commonly used. The S is an open drive offering easy adjustments for equipment requiring daily maintenance.

Dual Axis

Dual-axis slewing drives rotate around two separate axes independently at the same time. These products can hold large loads with a wide range of movement. The SDE is a dual positioner that can be mounted on a combination of axes to offer a full range of movement.

Rings & Gears

Slewing rings and gears are used when an entire gearbox is not needed. These products are specialized, individual components and can be functional in new marketplaces and unique applications. Slewing rings offer rotary devices a cost-effective, load-holding solution in a compact design.

Rings & Gears

Slewing rings and gears are used when an entire gearbox is not needed. These products are specialized, individual components and can be functional in new marketplaces and unique applications. The W rotator offers high power and rotational control in a compact package.

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What is a Slewing Drive?

Slewing Drives Image Slewing drives are commonly used mechanical devices, found today in applications such as construction cranes, solar tracking systems and industrial equipment. The basic technology found in these drive mechanisms, however, is very old dating back to Ancient Greece, and employed by Leonardo da Vinci in many of his Renaissance inventions. Modern slewing drives represent the modern evolutions of an ancient and highly effective basic machine, the worm drive or endless screw.

A quality modern slewing drive includes a sound mounting structure, a slew bearing, rotational movement and power controls to facilitate perfect motion. In operation, the drive converts axial movement (force exerted on an axis) into radial/rotary torque, allowing the rotation of greater loads with more accuracy, while also enabling geared torque amplification.

The slewing drive does this by meshing the grooves of a horizontal screw (the worm) with the teeth of a gear placed perpendicular to the screw. The gear rotates as the screw turns, and the screw’s axial movement force is then transmitted to the radial gear as magnified output torque.

While the basic idea behind the slewing drive is not new, the modern incarnations of this device feature many relatively recent innovations. Kinematics’ patented hourglass screw design, for example, increases the number of gear teeth that can be engaged with the worm grooves at once, greatly improving force transition over standard worm designs by meshing much more efficiently with the radial gear. This, in turn, significantly increases the drive’s survivability load, positioning accuracy and rotational smoothness.

Enclosed in a rugged and tested enclosure to protect the mechanism from water, dust, dirt and other particulate contaminants, the resulting Kinematics slewing drive gearbox delivers a powerful means of creating accurate rotational force in many of the world’s most demanding applications.

KMI Slewing Drives
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